Needle Bar Height Adjustment - Brother CS8000 Series Service Manual

Adjustment (Main Unit)
1. Attach the operation PCB assy. flat cable and power PCB assy. lead wire connector to the main PCB assy., and
attach the front cover to the arm bed.
2. Press and
3. <S2>
Select using
<S3>
Select using
base line position.
4. Turn off the power.
5. Lower the presser foot lifter.
6. Turn the pulley by hand until the right edge of the needle and the tip of the outer rotary hook meet (pulley turned
counterclockwise).
7. Loosen the set screw (socket (CP) M4X4) in the needle bar block
8. Adjust the height of the needle bar for 1.0 – 1.4 mm between the top of the needle hole and lower edge of the
outer rotary hook tip.
NOTE •Needle hole turned forward
9. Fully tighten set screw (socket (CP) M4X4.
10. Perform 4 - 23 "Adjust the needle thread block."
Set screw, socket (CP) M4X4
screw, socket 4 × 4

Needle bar height adjustment

while turning the power on (the buzzer will sound four times, and test mode will start).
, press once, and set the needle bar to the left base line position.
or , and after pressing
torque 0.78 – 1.18 N-m
Needle block
Iron bar
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press once, and set the needle bar to the left
Right edge of needle
and tip meet
1.0 - 1.4mm
4 - 9